Need help with horizon / usb modding

My usb is being automatically configured by the xbox and the files on the usb are not encrypted so horizon doesn’t view the usb as an xbox device, help

Are you sure you’ve added files to your usb drive? And it’s not automatically configured, it’s a manual procedure.

If you’re certain it’s configured and that you have files on it, then try running Horizon as administrator by right clicking the shortcut icon and selecting run as administrator. You should also try other usb ports and restart your PC if it hasn’t been since you installed Horizon.